baber/WOPTO huggingface dataset:
Patent GB-1521843-A (GB)
Title: Contact arrangement in a vacuum switch
IPC: H01H33/664
Filed: 1976-03-04
Abstract: 1521843 Vacuum switches SPRECHER & SCHUH AG 4 March 1976 [16 July 1975] 08732/76 Addition to 1497578 Heading H1N In a vacuum switch wherein both the fixed 1 and movable 2 contact assemblies each comprise two electrically interconnected tubular contacts 6 and 8, 12 and 13, respectively coaxially arranged one within the other, the outer tubular contact of the movable contact assembly provides a guide surface 24 for the inner tubular contact during relative movement between them and is itself guided during movement by a stationary guide 27, both the guide surface 24 and the stationary guide 27 being outside the evacuated housing of the vacuum switch, and separated therefrom by bellows 26, 28, so that they can be satisfactorily lubricated. The movable contact assembly comprises an outer contact 12 having at its contact making surface a flexible slotted ring 15 forming separated contact elements and an inner contact 13 with sheet metal arcing electrodes 18 radially arranged and internally spaced. The inner contact 8 of the fixed contact assembly has similar sheet-metal arcing electrodes 10. A compression spring 25 between the inner and outer movable contacts forces the inner movable contact surface 17 into engagement with the inner fixed contact surface 9 in the contacts closed position, and on contact opening the outer contacts open first due to the action of this spring until the outer movable contact 14 entrains a flange 22 on the inner movable contact 13, any arc between the movable and fixed contacts thus being passed to the arcing electrodes 10, 18 for extinction. It is said that both contact assemblies may be movable when both will be similarly constructed.
Patent GB-660914-A (GB)
Title: Improvements in inter-communication passages for stream-lined rail vehicles
IPC: B61D17/02
Filed: 1949-03-31
Abstract: 660,914. Railway-vehicle bodies. SOC. ITALIANA E. BREDA PER CONSTRUZIONI MECCANICHE. March 31, 1949. [Oct. 15, 1948] No. 8800/49. Class 103(iv). An intercommunication passage for a stream-lined rail vehicle comprises a door 1 in each end wall of the vehicle which may be moved over a roller track 7 to a space 1b in the roof when intercommunication between adjacent coupled vehicles is required, and a movable corridor section 2 which can be retracted to the position shown in Fig. 1 to render an end compartment of the vehicle available for a driver, and extended through the opening left by the raised door 1 when intercommunication is to be established, the said movable corridor section being complete with a hood 3, a gangway 5 and an intercommunication door 4. In its retracted position the movable corridor section rests on a floor portion 6 which may be raised on levers when the corridor is extended to maintain the floor level constant. Side doors 11 are provided in the compartment 2 to permit access to services when the compartment is retracted.
Patent GB-572472-A (GB)
Title: Improvements in alloys for the manufacture of parts resistant to erosion
IPC: C22C9/04
Filed: 1941-07-11
Abstract: 572,472. Alloys ; annealing. MOND NICKEL CO., Ltd., and HUDSON, F. July 11, 1941, No. 8812. [Classes 72 and 82 (i)] Copper alloys, particularly for marine propellers, centrifugal pump impellers, and other articles required to resist erosion, contain 3-6 per cent of nickel, 3.1-6 per cent of aluminium, 5-30 per cent of zinc, and 0.5-2.5 per cent of manganese, with or without up to 4 per cent of iron and up to 1 per cent of tin, the proportions being adjusted within these ranges to give an alpha-beta structure. Age-hardening may be effected by heating at 400-500‹ C. for 2 hours and cooling in air.
Patent GB-547814-A (GB)
Title: Improvements in and relating to power hammers
IPC: B25D11/12
Filed: 1941-07-14
Abstract: 547,814. Percussive-tools. HARDYPICK, Ltd., INGHAM, E., and RAYNER, P. T. July 14, 1941, No. 8877. [Class 124] In a percussive-tool wherein a piston 22 for imparting blows to a tool 5 floats within a cylinder 13 which is reciprocated in a stationary cylinder 3, the cylinder 13 is actuated by a crank shaft 15 driven by elliptical or other gearing 27, 28 which is rotated at varying angular velocity to produce maximum speed on the forward strokes. The gearing may be operated directly by the spindle 8 of an electric motor inside a casing 7 with a hand-grip 9, or from an extraneous source of power by means of a flexible shaft connected to the drive 34 of a clutch 36, 37. The latter is biased by a spring 39 and is controlled by a rotatable sleeve 40 which, together with an extension 43, forms supporting handles. The impact of the piston 22 with the ends of the cylinder 13 may be cushioned by resilient members 23 at each end of the cylinder, and/or by means of air compressed when the piston overruns ports 24, 25 in the cylinder. The outer cylinder 3 may be vented at 26, 26a, and the tool 5 may be rotated between each blow of the piston.'
Patent GB-727099-A (GB)
Title: Improvement in wiper rings for axially movable shafts
IPC: B64C25/60
Filed: 1953-03-31
Abstract: 727,099. Wiper rings for shafts. WYSE, H. G. March 31, 1953 [Aug. 14, 1952], No. 8882/53. Class 122 (5). A wiper ring 10 for an axially movable shaft 11 comprises a scraper ring 25 split angularly with respect to its axis and internally coned to form a narrow working edge 29 urged into contact with the shaft by a continuous solid section compression member 28 housed in a groove 27 in the outer periphery of the ring 25 and having a free internal diameter less than that of the bottom of the groove 27. The member 28, which is a sliding fit in the groove 27, is of equilateral polygonal shape and its opposite sides 35 are bowed when it is in the groove. The scraper ring 25 may be of bronze, brass, copper-silicon-alloy or other similar material softer than the material of the shaft.
Patent GB-293121-A (GB)
Title: Improvements in or relating to cotton gins
IPC: D01B1/06
Filed: 1927-03-31
Abstract: 293,121. Armstrong, Whitworth, & Co., Ltd., Sir W. G., and Middleton, B. M. March 31, 1927. Gins.-In a Macarthy double roller cotton gin or like machine the ginning rollers g are detachably mounted in housings h at the ends of arms d, pivoted at e and carrying weights f, so that the movement of the rollers is biassed towards the doctor knives i. The arms d can be raised and supported by movable pins o to allow the rollers to be removed. The doctor knives i are adjustably mounted in brackets j. The machine may be driven by a belt pulley combined with a clutch operated by a hand lever.
Patent GB-751795-A (GB)
Title: A magnetic powder clutch
IPC: F16D37/02
Filed: 1954-03-26
Abstract: 751,795. Magnetic clutches. ELEKTROMECHANIK GES. March 26, 1954 [April 2, 1953], No. 8935/54. Class 35. A magnetic powder clutch has an outer rotor 13 provided with an outer container to receive excess magnetic powder thrown from the work. ing air gap 15. The latter is in communication with the outer container by means of radial channels 11. The numerals 17, 18 indicate the level of the magnetic powder when the clutch is at rest and during working respectively. As the inner rotor 10 is speeded up, the powder is forced to fill first the air gap 15 because of the shape of the side walls of the outer rotor 13 and then any excess powder is moved into the outer container. Reference has been directed by the Comptroller to Specification 649,553, [Group XXXIV].
Patent GB-1470128-A (GB)
Title: Apparatus for detecting overloads of cranes
IPC: B66C23/90
Filed: 1975-03-04
Abstract: 1470128 Detecting overloads in boom cranes MITSUI SHIPBUILDING & ENG CO Ltd 4 March 1975 [5 March 1974] 9001/75 Heading B8B Apparatus for detecting overload of a crane having a boom 16 for suspending loads comprises a boom bending-moment set-valve generator, set in accordance with a variable quantity corresponding to the operating radius of the crane, two boom bending-moment detectors 25, 26 mounted on the boom 16 symmetrically relative to the vertical plane containing the longitudinal axis of the boom, a comparator for comparing the outputs of the set-value generator and the mean value of the outputs of the detectors 25, 26 and an alarm operated by the output of the comparator when the mean output of the detectors 25, 26 exceeds that of the setvalue generator.
Patent GB-308377-A (GB)
Title: Improvements in headlights for motor vehicles and the like
IPC: F21S8/10
Filed: 1929-03-22
Abstract: 308,377. Prudhomme, A. B. F. March 22, 1928, [Convention date]. Vehicle and like lamps.-A vehicle or like lamp is provided with two superposed retracting. optical systems, one system producing a convergent beam and the other a divergent beam, so that the whole beam is downwardly directed on to the road. Simple or compound lenses may be employed, and the source of light may be formed by a real or virtual image produced by a spherical, parabolic, or other reflector. In the form shown in Fig. 1, a source of light S is disposed between the foci F, F<1> of two suitably spaced convergent half-lenses L, L<1>. The lower half lens may be replaced by a divergent halflens which may be of the same focal length as the upper half lens. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modifications in which either the upper or lower half lens is removed and the convergent or divergent beam produced by the upper or lower half of a reflector R, Fig. 5 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-211740-A (GB)
Title: Improvements in the manufacture of paper
IPC: D21H23/24
Filed: 1923-04-06
Abstract: 211,740. Olander, F., and Moisio, V. April 6, 1923. Weighting; apparatus for treating with liquids.- In loading paper during manufacture, the loss of filling material such as china clay, powdered plaster, pearl hardening, French chalk, satin white, or heavy spar, is avoided by applying it in liquid form to the pulp web while on the wire cloth. A reservoir or box 1 is used, the bottom 2 of which slopes from the centre to both ends. The material flows down an incline 3<c> between a vertical face 3d and an adjustable gate 4 and down a tongue 7 to the pulp web.
Patent GB-399728-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D43/16
Filed: 1933-03-29
Abstract: 399,728. Lawn-mowers. QUALCAST, Ltd. and JOBSON, J. E. V., Victory Road, Derby. March 29, 1933, No. 9465. [Class 6 (ii).] A lawn-mower is provided with a removable edge-cutter unit, comprising a rotary member and a fixed member, adapted to be coupled to and driven directly by one of the horizontal rotary members of the mower and connected to an annular flange on one of the side plates by a bayonet joint. The edge-cutter unit comprises a blade n fixed to a bush j and a star-wheel g fixed on a shaft h. The bush j fits in a flange d on the mower and is retained by studs l engaging slots e in the flange. The shaft a carrying the cutter drum of the mower terminates in a diametric tongue f which engages a corresponding recess k in the shaft h. A spring-controlled plunger m locks the edgecutter in place. When not required for use, the edge-cutter unit may be mounted on a flange on one of the handles or other part of the mower and a metal cap may fit over the flange d.
Patent GB-227408-A (GB)
Title: Improvements in protectors for sparking plugs
IPC: H01T13/12
Filed: 1924-04-15
Abstract: 227,408. Fries, R. Jan. 8, 1924, [Convention date]. Sparking-plugs.-A shield for sparking-plugs comprises a sleeve 2 which fits over the hexagonal portion of the plug casing and is made of good heat-oonducting material such as aluminium of substantial thickness. It is internally threaded to receive a bush 5 of insulating material. This bush is centrally bored to pass over the central electrode and is longitudinally adjusted according to the length of the plug with which the shield is used. Folding handles 4 are pivoted on the sleeve for facilitating the insertion and removal of the plug 1, and cooling is further promoted by ribs 3.
Patent GB-843120-A (GB)
Title: Improvements in or relating to the manufacture of electric lamps and like devices
Inventor: HASLEGRAVE HAROLD HENRY WILSON
IPC: H01J9/32
Filed: 1957-03-22
Abstract: 843,120. Making electric incandescent lamps. GENERAL ELECTRIC CO. Ltd. June 20, 1958 [March 22, 1957], No. 9502/57. Class 39(2). In the manufacture of foot tube assemblies for electric incandescent filament lamps and similar devices, the foot tube 6 is supported with its axis vertical, an exhaust tube 10 is fed into it so as to extend vertically through it, the foot tube being partly flattened so that its walls contact or nearly contact the exhaust tube and form two passages on opposite sides thereof, lead-in wires 19 are fed into the foot tube one on each side of the exhaust tube, their lower ends being received in locating means 9 and the pinch is then completed. The foot tube is held by a pair of jaws 5 between an upper split collar 11 having a central opening for the exhaust tube and side openings 13 for the lead-in wires and a lower split collar 9 having similar openings and mounted above a stop 8 for regulating the position of the exhaust tube and lead-in wires relative to the foot tube. The flattening of the foot tube may be effected simply by heating for which pair of burners 21 may be used, the same burners being used subsequently with a pair of hammers to complete the pinch. The apparatus may comprise a continuously revolving table having a series of supporting means for the foot tubes, the exhaust tube and lead-in wires being fed to the foot tube at successive positions, for example by means of the apparatus described in Specification 835,921, the completed assemblies being removed by transfer means for example as described in Specification 840,854.
Patent GB-637735-A (GB)
Title: Improvements in or relating to loudspeakers or microphones
IPC: H04R7/12
Filed: 1947-04-10
Abstract: 637,735. Diaphragms; loudspeakers. CHAPMAN, C. T., and GOODMANS INDUSTRIES, Ltd. April 10, 1947, No. 9531. [Class 40 (iv)] The free peripheral edge of a free edge cone diaphragm 7 is reinforced by a small bead, flange or corrugation 8. The diaphragm 7 is preferably of bakelized paper and the bead 8 may be moulded with the cone during its formation. In the double cone loudspeaker or microphone shown, the diaphragm 7 is carried through a compliance by the moving coil 5 mounted on a larger diaphragm 2 flexibly mounted at its periphery, the smaller centre diaphragm 7 being allowed to vibrate at the higher frequencies without restriction by the larger cone 2.
Patent GB-697255-A (GB)
Title: Improvements in and relating to injection moulding and articles produced thereby
IPC: B29C45/16
Filed: 1951-04-25
Abstract: 697,255. Injection-moulding hollow articles. WAGNER, E. V. April 18, 1952 [April 25, 1951], No. 9606/51. Class 87 (ii) A hollow article having. a head or closed end, e.g. a tubular reservoir a for a ball-pointed writing instrument or a pen or pencil cap or point protector, is made by a two-stage process. In the first stage the article is injection-moulded in the apparatus shown in Fig. 2, which includes a mould 7 and core 3, the free end of the core or the sleeve 11 by which it is supported having grooves or the like 3a through which plastic material passes into the moulding space between the mould 7 and the core. This results in the production of an article having gaps in its head or closed end corresponding to the places at which the core is supported by the sleeve. In the second stage the plate 10 in which the sleeve 11 is disposed is removed (the incompletely-moulded article being left in the mould) and in its place is put another plate 10a having a sleeve 12, Fig. 3, which is spaced from the end of the core, more plastic material being then injected through sleeve 12 to fill or cover the gaps in the head or closed end of the article and produce a smooth end b. (This end is afterwards drilled to receive a ballhousing.) The plate 10a and stripper plate 8 are then raised, the plate 8 retaining the article which is thus withdrawn from the core pin. Figs. 2 and 3 show apparatus for moulding many reservoirs simultaneously, each core being held in a plate 2 and passing through a bush 5 in a bolster 4. The moulds 7 are carried in a plate 6 and project into the stripper plate 8. Guide pillars 9 are provided.
Patent GB-251093-A (GB)
Title: Improvements in excavating machines
IPC: E02F3/30
Filed: 1925-04-15
Abstract: 251,093. Savage, W., Livens, F. H., and Ruston & Hornsby, Ltd. April 15, 1925. Scoop-arm machines. - In a scooparm excavating machine, a single or multiple bight in the hoisting cable is connected through a separate transmission to the scoop-arm, whereby the tension in the hoisting cable exerts a straight pull which the separate transmission converts into a thrust acting longitudinally of the scoop arm to move it outwardly. As shown in Fig. 1, the hoisting cable h passes over pulleys j, k in one or more bights and over pulleys l, m to a fixed point n; the pulleys k are carried by a rack o movable in guides 6 and engaging a pinion on the usual racking shaft r, whereby the pull in the hoisting cable tends to rotate the shaft r and force the bucket outwardly. Such motion is resisted when desired, or the bucket is returned, by means of an auxiliary cable p passing from a fixed point t over a pulley s on the rack and a pulley q on the shaft r to a drum f provided with driving connections and brakes. If desired, the cable p, suitably guided from the drum f, may be connected directly to to the lower part of the rack. In Fig. 2, the rack o is omitted and the pulleys k, guided if desired, are connected by a single or duplex cable v passing over a pulley w to one end of the scoop arm, while a single or duplex cable p passes over a similar pulley to the other end of the scoop arm. The pulleys j may be carried by a rearward extension of the jib and the cable h may pass from the pulley k over a further pulley at the top of the jib or direct to the pulley l. The cable p may pass over a drum on the shaft r or one geared therewith to act through the usual rack and pinion racking means, or a power-driven endless chain may be geared to the last-mentioned shaft. Specification 22685/02 is referred to.
Patent GB-844531-A (GB)
Title: Improvements relating to electric griller boiler units
Inventor: BYFORD GEORGE PLEDGER
IPC: F24C15/10
Filed: 1957-03-26
Abstract: 844,531. Electric cooking apparatus. A.E.I. HOTPOINT Ltd., March 26, 1957, No. 9879/57. Class 39(3). An electric griller-boiler comprises a convoluted sheathed heating element rotatably mounted together with a reflector in a marginal frame having spaced contacts to which the terminals of the element are connected so that the element frame and reflector constitute an integral unit adapted to be plugged into contacts provided on a cooker. As shown a heating element 1 is pivotally mounted within and about an axis perpendicular to the shorter sides of a rectangular frame 2 having at one end a box-like casing 3 housing plug-in contacts 4, Fig. 3 (not shown). A reflector 6 and the element 1 are supported by transverse members 4 which are in turn supported by a longitudinal support 5 lying along the axis about which the element pivots. The support 5, axially biased by a spring 20, is connected at its ends to disc-like supports 10, 101, rotatably mounted in U-shaped housings 11, 11<SP>1</SP> attached to the frame 2 by screws 12. The element is angularly located in the position for grilling or the position for boiling by balls 13<SP>1</SP> lying between a crimped washer 13 and the disc 10<SP>1</SP>, a rotation greater than 180 degrees being prevented by an ear 16 on the disc 10 which engages with projection 17 on the housing 11<SP>1</SP>. When used for boiling, the element is positioned as shown in Fig. 1 ; for grilling the element is rotated so that the reflector lies above the plane of the rim of frame 2. The location of the element may be effected by the use of a spring loaded barrel with slots as an alternative to the disc construction.
Patent GB-844097-A (GB)
Title: Improvements in sheave or capstan
IPC: C21D9/62
Filed: 1958-03-27
Abstract: 844,097. Pulleys. SYNCRO MACHINE CO. March 27, 1958 [Sept. 20, 1957], No. 9890/58. Class 80 (1).). A sheave or capstan partially for use in a wire drawing machine comprises a main body member 10 with a flange 24 to which is clamped by a cover flange 20 a band 13 forming a cylindrical base to the pulley groove. The ends of the band 13 abut closely at 14 and shoulders 12, 21 are provided on the flanges 24, 20 respectively to receive the band which may be expanded by a split ring 15 and a conical screwed plug 18. Alternatively the ring 15 may be integral with the cover flange which is split for expansion. In another arrangement the band is contracted by a split cover flange on to a cylindrical portion of the main body.
Patent GB-201211-A (GB)
Title: Improvements in or relating to automatic chucks
IPC: B23B31/12
Filed: 1922-04-06
Abstract: 201,211. Seiffert, O. April 6, 1922. Chucks.-In a cam-operated chuck of the type in which a cage ring acts on rollers and is locked in the ineffective position against the action of a spring, the spring connects an operating member with the cam member and with the cage ring in such a manner that on first rotating the sleeve it is compressed along its entire length, but when the rollers grip the work, only a part of the spring is further compressed. The jaws 2, which may be cylindrical, prismatic or of other shape, are carried by a cage 3 revolubly mounted on the cam member 1, the latter being connected to the machine spindle. A casing 5, capable of axial movement, is connected to the cam member by a compression spring 6 and a stationary sleeve 13 engages the casing by pins entering an annular groove in the latter and also by means of a conical surface. In operation, while the chuck is rotating, the casing is retarded by means of axial movement of the sleeve, whereupon the spring is compressed and produces relative rotation between the jaws and the cam through a pin 7 on the cage engaging the spring. When the jaws grip the work, the cage remains stationary and the spring from 9 to 7 only is further compressed. A spring pawl 11 on the casing engages teeth on the cam to lock the parts in the tightened position. On withdrawing the casing to release the jaws, the pawl slips off its teeth into a recess in the cam, and also prevents complete disengagement of the casing.
Patent GB-831781-A (GB)
Title: A process for the manufacture of ductile cast iron
IPC: C21C1/10
Filed: 1956-03-29
Abstract: Spheroidal graphite cast iron is produced by adding magnesium to the molten metal in a vessel in which the pressure is above atmospheric pressure before the addition of magnesium to the melt. A ladle containing the molten metal may be placed in an autoclave having a sealed opening through which passes a rod attached to a container for the magnesium and the pressure within the autoclave increased to a value corresponding to the vapour pressure of magnesium at the temperature of the melt, the magnesium then being added.  The pressure may also be raised by adding a portion of magnesium which vaporizes after which the magnesium for the production of spheroidal graphite may be added.  Reference has been directed by the Comptroller to Specification 630,070.
Patent HK-143693-A (HK)
Title: Phase-adjustable coaxial cable connector
Inventor: YASUMOTO HIROMI
IPC: C08F222/40
Filed: 1993-12-30
Abstract: A coaxial cable connector 1 has a cylinder body 2 supporting a rotatable coupling 4 at one end and an adjustment element 8 screwthreaded to the body 2 at its opposite end. An electrically conducting central connecting element 13 is supported within the forward end of body 2 by dielectric 12. A centre conductor 11 of the cable 9 is connected to the central connecting element 13, and rotation of element 8 relative to body 2 moves the coaxial cable axially relative to central connecting element 13 to vary the axial length of the central conducting path, by kinking the central conductor or otherwise.